﻿// Copyright 2007-2012 Chris Patterson, Dru Sellers, Travis Smith, et. al.
//  
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use 
// this file except in compliance with the License. You may obtain a copy of the 
// License at 
// 
//     http://www.apache.org/licenses/LICENSE-2.0 
// 
// Unless required by applicable law or agreed to in writing, software distributed 
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
// specific language governing permissions and limitations under the License.
namespace Topshelf
{
    using System;
    using System.Linq;
    using Builders;
    using Configurators;
    using HostConfigurators;
    using Supervise;

    public static class SuperviseConfiguratorExtensions
    {
        /// <summary>
        ///   Configure the host to supervise the service
        /// </summary>
        /// <param name="hostConfigurator"> </param>
        /// <param name="configureCallback"> </param>
        public static HostConfigurator Supervise(this HostConfigurator hostConfigurator,
            Action<SuperviseConfigurator> configureCallback)
        {
            var superviseConfigurator = new SuperviseServiceConfigurator();

            configureCallback(superviseConfigurator);

            hostConfigurator.UseServiceBuilder(x =>
                {
                    ConfigurationResult configurationResult =
                        ValidateConfigurationResult.CompileResults(superviseConfigurator.Validate());
                    if (configurationResult.Results.Any())
                        throw new HostConfigurationException("The service was not properly configured");

                    ServiceBuilder serviceBuilder = superviseConfigurator.Build();

                    return serviceBuilder;
                });

            return hostConfigurator;
        }
    }
}